Honda Accord 2008 Manual page 780

Idle Control System
PSP Switch Signal Circuit
Troubleshooting (cont'd)
2 3 . C h e c k f o r c o n t i n u i t y b e t w e e n P S P s w i t c h 2 P
c o n n e c t o r t e r m i n a l N o . 2 a n d b o d y g r o u n d .
P S P S W I T C H 2P C O N N E C T O R
W i r e s i d e o f f e m a l e t e r m i n a l s
Is there continuity?
Y E S — U p d a t e t h e E C M / P C M if it d o e s n o t h a v e t h e
l a t e s t s o f t w a r e ( s e e p a g e 1 1 - 2 8 1 ) , o r s u b s t i t u t e a
k n o w n - g o o d E C M / P C M ( s e e p a g e 1 1 - 7 ) , t h e n
r e c h e c k . If t h e s y m p t o m / i n d i c a t i o n g o e s a w a y w i t h
a k n o w n - g o o d E C M / P C M , r e p l a c e t h e o r i g i n a l E C M /
P C M ( s e e p a g e 1 1 - 2 8 2 ) . H
N O — R e p a i r o p e n i n t h e w i r e b e t w e e n t h e P S P
s w i t c h a n d G 2 0 1 . B
Brake Pedal Position Switch Signal
Circuit Troubleshooting
1 . T u r n t h e i g n i t i o n s w i t c h t o O N (II).
2. C h e c k t h e B R A K E S W I T C H i n t h e D A T A L I S T w i t h
t h e H D S .
Does it indicate OFF?
Y E S — G o t o s t e p 3.
N O — I n s p e c t t h e b r a k e p e d a l p o s i t i o n s w i t c h
( s e e p a g e 1 9 - 3 ) . •
3. P r e s s t h e b r a k e p e d a l , a n d c h e c k t h e B R A K E
S W I T C H i n t h e D A T A L I S T w i t h t h e H D S .
Does it change to ON?
Y E S — T h e b r a k e p e d a l p o s i t i o n s w i t c h s i g n a l c i r c u i t
( B K S W l i n e ) i s O K . B
N O — G o t o s t e p 4 .
4. T u r n t h e i g n i t i o n s w i t c h t o L O C K (0).
5. J u m p t h e S C S l i n e w i t h t h e H D S .
6. D i s c o n n e c t t h e b r a k e p e d a l p o s i t i o n s w i t c h 4 P
c o n n e c t o r .
7. D i s c o n n e c t E C M / P C M c o n n e c t o r A (49P).
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